Kôsuke Kindaichi, a somewhat peculiar private detective, visits a remote town. He meets a police detective and they start to investigate an old unsolved murder. Then some murders happen. Kindaichi must find out about the past in order to reveal who the murderer is.
A man with a medical condition and a guilty past becomes obsessed with a simple minded girl he finds in a park. His wife is not thrilled when he brings her home.
To solve the mystery of a murder of an old governess which takes place at a wealthy Daidoji family's country estate, family secrets and lies dating back several generations must be sorted out once and for all.
